Synthesis of two novel cobalt complexes and their crystal structures

Two new cobalt complexes were successfully synthesized from the reaction of binaphthyl Schiff base 2 with Co(OAc)(2) in the presence of sodium methoxide at 80degreesC for 24 h and Co(acac)(3) in toluene under reflux. Their unique crystal structures are unambiguously disclosed by X-ray analysis. Complex 3 is triclinic, space group P (1) over bar, unit cell dimensions a = 10.742(2) Angstrom, b = 11.153(2) Angstrom, c = 12.715 Angstrom, alpha = 79.865(3)degrees beta = 76.053degrees, gamma = 72.532(4)degrees, volume 1401.3(5) Angstrom(3) , Z = 2. Complex 4 is triclinic, space group P (1) over bar, unit cell dimensions a = 10.801(2)Angstrom, b = 12.554(3)Angstrom, c = 15.219(3)Angstrom, alpha = 105.672(4)degrees beta = 103.048degrees, gamma = 104.594(4)degrees, volume 1824.8(7)Angstrom(3), Z = 2, calculated density 1.428 Mg m(-3). Copyright (C) 2003 John Wiley Sons, Ltd.